Fan-motor



C. C. AND1. WILLIAMS.

FAN MOTOR.

APPLICATION FILED 1AM.18,1917. RENEwED JUNE 19, 1919.

1,330,827. Patented Feb.' 17,1920.

4 SHEETS-SHEET l.

.u Gttamup c. VC. AND 1. WILLIAMS.

FAN MOTOR.

- APPLICATION FILED JA UNE 19. 1919. 1,330,827. Peeeneed Feb. 17,1920.

4 SHEETS SHEET 2.

Ju 056012, W'ILZ C. c. AND 1. WILLIAMS.'

FAN MOTDR.

APPLICATION FILED JAN.I8|1917. 1,330,827.

RENEWED JUNE I9. i919.

Patented Feb. 17, 1920.

4 SHEETS-SHEET 3.

vdr/? O W .W

C. C. AND j. WILLIAMS.

FAN MOTOR.

APPLICATION FILED I AN.I8.19I7. IIEIIEwED JUNE I9. |919.

, 1,330,827. Patented Feb. 17,1920l 4 SHEETS-SHEET 4.

/4 *7 EN CI i 3mm/tofu l :Edson Way/2m@- CALVIN C. WILLIAMS .AN'D JUDSON WILLIAMS, 0F PHILADELPHIA, PENNSYLVANIA.

FAN-MOTOR.

Specification of Letters Patent.

Patented Feb. 17, 1920.

Application iled January 18, 1917, Serial No. 143,138. Renewed `Tune 19, 1919.- Serial No. 305,395.

To all 'whom it may concern.'

Be it known that we7 CALVIN C. WILLIAMS and JUDsoN WILLIAMS, citizens of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Fan-Motors, of which the following is a specification.

rlhis invention relates to motors employ-` ing steam as the motive fluid andwhile the motor embodying the invention is primarily designed for use in driving a desk fan, it will he understood that it may be put to various other uses and that the principles of the invention may be embodied in motors of various sizes.

The invention aims primarily to provide a motor employing steam as the motive fluid which motor will be light in weight and compact so as to adapt it for use, for example, in driving a desk fan, and, incidentally, the invention aims to provide means for condensing the exhaust steam and utilizing the water of condensation so that it will seldom become necessary to replenish the water and undesirable results which would attend the escape of steam to the atmosphere will be avoided.

As concerns the means provided for condensing the exhaust steam, the invention aims to provide a condensing coil system which will be so arranged as to be cooled through the rotation of the fan driven by the motor.

Another aim of the invention is to provide means for maintaining a circulation of water through the water heating coils which comprise a part of the motor, which means will be operated directly from the motor shaft and will be housed in a compact manner within the base of the motor.

Another aim of the invention is to provide in a motor of this class a novel form of valve for controlling the admission and exhaust of steam to and from the cylinder and a compact arrangement of parts for actuating the said valve.

Another aim of the invention is to provide a motor so constructed that the parts of the same may be readily disassembled whenever it is desired to clean or repair the same.

Another aim of the invention is to so house and conceal the burner for heating the water coils of the motor that the device will not he unsightly and there will be no likelihood of one lifting the motor being burned, the burner and all parts likely to become heated to any high degree of temperature, being located considerably above the portion of the motor casing which is to be .grasped and this latter portion of the casing constituting a part of the water reservoir so that the same will be maintained at a low temperature.

In the accompanying drawings:

Figure l is a vertical front to rear sectional view through the motor embodying the present invention;

F 2 is a front elevation thereof;

Fig. 3 is a perspective view illustrating the parts of the motor in a more or less disassembled condition;

4 is a vertical sectional view illustrating one position of the piston and valve of the motor;

Fig. 5 is a similar view another position of these parts;

Fig. 6 is a similar view illustrating still another position;

Fig. 7 is a perspective view of the burner of the motor and the cylinder and valve;

Fig. 8 is a perspective view of the inner end of the motor shaft;

Fig. 9 is a perspective view of the crank casing for the motor;

Fig. l0 is a detail sectional view through one of the combined couplings and check valve casings employed in the water circulating system of theJ motor.

The body of the casing for the motor constitutes also the water reservoir and the said casing includes a base l having an upstanding hollow standard portion 2 suliciently small in diameter to permit of the same being readily grasped when it is desired to move the motor from place to place, and an enlarged hollow upper portion 3 closed by a cover plate 4; The cover plate either directly or indirectly supports all of the parts comprising the motor and, consequently, when the cover plate is removed the said component parts of the motor will be exposed to view and may be readily cleaned or repaired. The plate 4- is provided centrally upon its upper side with an integral boss 5 which is exteriorly cylindrical and which is bored to provide the steam cylinder 6 of the motor and the valve chest 7 for the valve which controls the admission and exhaust of steam. The bores 6 and 7 are both cylindrical and both open at their lower ends at the underside of the plate 4 illustrating Yso 4 and at their upper ends the said bores are closed byY a head 8. The piston of the motor is indicated by the numeral 9 and has Voperative connection with the motor shaft in a manner which will presently be described in detail, the said piston working in the'usual manner within the cylinder G. At' its upper end the cylinder is provided with a combined inlet and exhaust port 10 which, at times, communicates with the interior of the valve chamber 7 and at other times communicates with an exhaust passage formed in the valve which works in the said chamber and which also will hereinafter be fully described The steam is generated in pipe coils which are preferably arranged to surround the upper end of the boss 5 and which coils are heated by a burner surrounding the lower end of the said boss and preferablyY formed integrally therewith. The burner comprises a fuel font 11 which, as stated, is integral with the lower end of the boss 5 and surrounds the same and is located immediately above the plate 4. In fact, the font 11 is in the nature of an annular chamber, the exterior surface of the boss 5 constituting the inner wall of the said chamber and the plate 4 constituting the bottom wall thereof. The top wall of the chamber is formed with an annular series of perforations 12 and as fuel, fed to the chamber by a pipe 13, issues through the perforations 12, it is ignited and the jets of llame impinge Vupon the coils mentioned above and convert the water therein into steam.

The pipe coils above referred to are indicated by the numeral 14 and the said coils may be of any desired number and, as before stated, surround the upper end of the boss 5. The head 8 is formed with a pas- Y sage 15 whichextends diametrically thereof and which opens at one end at the periphery of the head and at its other end at the underside of the head, the end of the coil 14 being fitted into the rst-mentioned end of the passage 1 5, as clearly shown in Fig. 1 of the drawings, and the passage at its other end communicating with the upper end of the valve chamber 7 also as clearly shown in the said figure. At its last-mentioned end the passage 15 is of the same diameter as the upper end of the chamber 7 and above the said end of the passage the head 8 is formed with a threaded opening 16 through which the valve may be inserted and removed, the said opening being normally closed, however, by means of a. plug, indicated by the numeral 17. The valve above referred to coirnrises a cylindrical body 18 which is slidably and yet snugly fitted in the chamber 7 and this body is formed with a longitudinally extending passage 19 provided at its upper end with a branch 20 designed at times. to register with the port 10, as shown in Figs. 1 and 4 of the drawings. At itsV haust conducting pipe, indicated by the numeral 23. The valve 18 is reciprocated through rotation of the motor sha-ft, as will be 'presently explained, and the upward movement of the valve is limited by the engagement 0f its upper end with'a stud 24 which projects downwardly from the plug 17y and the said upper end of the valve is beveled or provided with an inclinedsurface 25 which permits of steam passino' more readily into the cylinder (3 through tne port 10 when the valve is in the position shown in Fig. 5 of the drawings. By reference now to Figs. 4, 5 and 6 of the drawings it will be observed thatthe branch 20 of the passage 19 ina'f' register with the port 10 so as to permit of exhaust of steam from the cylinder 6 and that the said port may be closed, as shown in its upper end and the branch 2O of the passage 19, this said portion corresponding in di- Y mensions to the dimensions of the said port.

The motorshaft is'indicated by the .numeral and the said shaft is mountedbetween its ends for rotation in a bearing 26 which is removably secured upon the side of the upper portion 3 of the body or casing for the motor. At its inner end the shaft extends into a crank casing which comprises a bottoni 27, sides 28 and ends 29, this casing being closed at its bottom and open at its top and being secured to the underside of the plate 4 by means of bolts or ethersuitable securing` elements which are passed through flanges 30 formed at the Vupper edges of the side and end walls of the said casing. One end wall of the casing is provided with a lateral extension 31, which is also secured to the underside of the plate 4, and the upper face of this extension is formed with an oil duct or groove 32, which communicates with theinterior of the casing and at its outer end registers with an oil inlet opening in the plate 4, this opening being normally closed by a cap or plug which isfremovable to pe 'mit of oil beingintroduced'into the crank casing by way of the said duct. In one of its side walls the crank casing is formed withy anti-friction metal is secured upon the shaft and is rotatably fitted within the said bushing. The inner end of the shaft 25 projects slightly beyond the inner end of the bushing 35 and fixed upon the projecting end of the shaft is a cam 39 and this cam carries a crank pin 40 to which is connected the lower end of the rod 41 for the piston 9. It will now be understood that in the operation of the motor the reciprocation of the piston 9 will result in rotary motion of the shaft 25. By reference to Fig. 1v of the drawings it will be observed that the cam 39 is located below the lower end of the valve chamber 7 and the valve 18 at its lower end is bifurcated, as at 42, and a roller 43 is mounted in the bifurcation 42 and rests upon the working surface of the cam 39. In order to prevent rotation of the valve within its casing, the lower end of the valve is iiattened, as at 44, and its flattened side works against the inner face of that side wall 2S of the crank casing in which the bushing 35 is fitted. It will now be understood that steam generated within the coils 14 will enter the passage 15 and when the valve 18 is in the position shown in Fig. 5 of the drawings, will enter the cylinder 6 moving the piston 9 on its down stroke. As the shaft 25 is rotated the valve will be brought to the position shown in Fig. 6 of the drawings in which position its portion between the branch 20 of the passage 19 and the upper end of the valve will close the port 10, thereby allowing the steam to expand within the cylinder in the usual manner. On the up stroke of the piston, the cam will lift the valve 1S to the position shown in F ig. 4 of the drawings, and steam will pass from the cylinder through the port 10 and passage 19 to the pipe 23. While the shaft 25 may be employed in driving various small machines it is here shown as employed in driving a fan the blades of which are indicated by the numeral 45, the said blades radiating from a hub 46 fixed upon the said shaft. The fan is preferably inclosed within the usual form of wire fender 47 including the usual annular frame 48 and supported by this frame and extending preferably in a zig-zag manner, as shown in Fig. 2 of the drawings, is an extension of the pipe 23, the said extension being indicated by the numeral 49. At one end the extension is connected with the pipe 23 by a coupling 50 and the other end of the pipe 49 leads into the base 1 of the casing for the motor, as indicated at 51. It will be understood that as the fan rotates the coils of the pipe 49 will be cooled and, consequently, the steam exhausting from the engine and entering the said coils will be condensed and returned to the water reservoir comprising the casing of the device. Tn order to confine the heat from the burner and thereby more effectually heat the coils 14, an

approximately conical hood 52 is disposed upon the plate 4 and incloses the said burner and motor, as well as the coils 14. This hood also serves to provide against heating of the condensing coils 49 'due to heat radiation from the burner.

The coils 14 communicate with a pipe 53 which extends downwardly through the plate 4 and which is connected by the coupling shown in Fig. 10 with a pipe 54.V This coupling includes a sleeve 55 which is fitted to the adjacent ends of the pipes 53 and 54 and is secured thereto by welding or otherwise. This sleeve at its ends is exteriorly tapered, as at 56, and rotatably fitted upon the pipe 54 is one section of the coupling, indicated by the numeral 57, the said section being interiorly threaded, as at 58, and having its bore contracted, as at 59, to bear against the lower tapered end of the sleeve 55. The other section of the coupling is indicated by the numeral 60, and the same is exteriorly threaded and fitted into the upper end of the section 57. The section 60, as in the case of the section 57, is interiorly reduced, as at 61, to bear against the upper end of the sleeve 55. The upper end of the pipe 54 constitutes a seat for a ball valve 62 and this valve, as will be understood by reference to the drawings, permits of the passage of water, upwardly into the pipe 54 and into the pipe 53 but prevents back flow of the water. In order that when the ball valve 62 is raised and contacts the lower end of the pipe 53 the flow of water will not be interfered with, the said lower end of the pipe 53 is notched or serrated, as -at 63.

In order that water may be supplied to the coils 14, means is provided for taking water from the water reservoir comprising the casing of the device and delivering the same to the said coils through the pipes 54 and 53 and this means will now be described. A standard 64 extends downwardly from the lbottom wall of the crank casing heretofore described and supports at its lower end a head which is indicated by the numeral 65 and this head is formed with a passage 66 into one end of which is tted the lower end of the pipe 54, the pipe having its said end notched or serrated, as at 67, and the passage being formed inwardly of its said end with a valve seat 68 for the ball check valve 69 which works between the said seat and the said end of the pipe and prevents back flow of water through the said pipe. The said end of the passage 66 opens through the upper face of the head 65 and the other end of the passage opens through the periphery of the head and is closed by means of a threaded plug 7 0, the plug being provided at its inner end with a linger 71 which projects in the path of and constitutes a stop for a ball check valve 72 normally resting upon a seat formed in a branch leading from-the said passage 66, this branch being indicated bythe numeral 73. By reference to Fig. 1 of the drawings it will be observed that the head is located within the hollow basel of the casing and it will also be observed by reference to the said gurethat the branch 7 3 from the passage 66 extends diametrically of the head and ythat there is threaded into thevunderside ofY wthe head a plug 74 having'an inlet passage 7 5 communicating with the branch 7 3, the plug being provided with a valve seat 76 upon which normally rests a ball check valve 77. Threaded into the upper 'face of the head 65 at a point inmediately above the valve 7 2 is the lower end of a tubular pump cylinder 7 8 and working within the cylinder is a relatively long piston 79 to the upper tend of which is pivotally connected the lower end of a pitman 80. The pitman at its upperend is provided with an eccentric strap 81 which coacts with an eccentric 82 fixed upon the shaft 25. ltwill now be understood that upon rotation of the shaft 25 in the operation of the device the piston 79 Vwill be reciprocated and water will be drawn into the passages 7 3 and 66 and forced therefrom, upon each down stroke of the piston, through the pipes 54 and 53 into the coils 14, where it will be converted mto steam for operating the piston 9 as heretofore described.

In starting the motor, or in other words, inV

thel initial operation of the device, it becomes necessary to manually elevate water from the water reservoir to the coils 14: and this is accomplished through the manual operation of the auxiliary pump shown in Fig. 1 of the drawings, which pump includes a cylinder 83 having its lower'end in communication with the branch passage 7 3 and mounted for reciprocation in the cylinder is a piston 8a to the upper end of which is connected a rod 85 which reciprocates through a suitable packing gland 86 upon the plate 4, the rod being provided at its Vupper end with aflnger lrnob'87. Normally the piston 84 is held in elevated position by means of a spring 8S which bears at its lower `vend at the lower end of the cylinder 83 and at its upper end against the upper side of the said piston 84. The cylinder is provided with a number of waterinlet openings 89 and it will be understood that water may enter the cylinderthrough the openings as also through the passage 7 5 and that when the piston 84:y is moved on its downward stroke the water will be elevated tothe coils le through the pipes ,5 and 53.

In order that the steam cylinder 6 may be maintained in heated condition and thereby provide against condensation of steam entering the said cylinder, thefboss 5 isformed with any desired number4 of passages 90 .whichopen attheir lo-wer :ends at the eX- ends through the upper endsof the Vsaid boss,or in other words,through they head 8. Asv 'the lower ends of these passages are located relatively close to theijets of flame issuingfrom the openingslQ of the Vburner of the device, the heated air from the burner will pass upwardly through the said passages and will heat the walls of thel cylinder Yand also the walls of the casinge for the valve 18.` Y

lit will'be understood that the cylinder and cylinder head constitute the boiler or a part of the boiler. It will also beY understood that the pressure generated inthe coil 111 operates the valve on Vits downward stroke and if there is no pressure in the coil 11i and the engineis rotated then the cam will raise the `valve to its highest position Vand open the exhaust port which will then remain open until pressure is generated in the cylinder head and the said coil.

It will be observed that with the Ypresent apparatus it is unnecessary to employ a steam gage, a water gage, or safety valve and that no hand throttle valve is necessary.

Having thus described the invention, what is claimed as new is:

1. In a device of the class described, a hollow casing constituting a water reservoir, a cap platefor the casing, a steam motor upon the cap plate includinga cylinder, a valve chamber, a valve within the chamber, a piston working in the cylinder, a shaft mounted below the said plate and having with the valve for actuating the latter, a generating coil surrounding lthe said piston and valve chamber, a heater for the coil also surrounding the cylinder and valve chamber and carried by the said plate, a pump sup ported from the plate and housed within the water reservoir, means forV actuating the pump connected with said shaft, anda supply pipe leading from lthe pump to the said generating coil. Y Y

2.y In a device of the class described, a hollow Vcasing constituting a water reservoir, avcap plate for the casing, a steam motor upon the cap plate including Va cylinder, a valve chamber, a valve within-the chamber, a piston working in the cylinder, a shaft mounted below the said*plate and having operative connection with the piston and with the valve for'actuating the latter, a generating coil surrounding the said piston and valve chamber, a heater 1 for the coil also surrounding the cylinder and ,valve `chamber and carried by the said plate, a

pump supported from the plate and housed within the water reservoir, means for actuating the pump connected with'said shaft,'a supply pipe leading from the pump to the said generating coil, a condensing coil ex tending .from the exhaustV from ythe valve Vterior.surface of the boss and at ytheir Vupper 'operative connection with the piston and l-lO chamber to the said Water reservoir, and a cooling device driven by the said shaft for cooling the said condensing coil.

3. In a motor of the class described, a cylinder provided With an inlet and exhaust passage, a valve chest, a piston Working in the cylinder, a shaft driven from the piston, a valve Working in the said chest and designed to control the said inlet and exhaust passage and having an exhaust passage therethrough designed to communicate With the exhaust passage from the cylinder, means for admitting steam to the valve chest, the valve being actuated in one direction by the steam pressure Within the chest, and means actuated by the shaft for moving the valve in the opposite direction.

4. In a motor of the class described, a hollow casing constituting a Water reservoir, a steam motor supported upon the casing, a 'generator for supplying steam to the motor also located upon the casing, a shaft extending into the casing and driven by the motor, a head supported Within the lower portion of the casing in position to be Wholly submerged in the Water in said casing, a pump cylinder upon the head, a piston working in the cylinder and operatively connected With the shaft, the head being formed with a Water inlet passage communicating with the pump cylinder, a pipe leading from the head to the generator and also communicating With the said passage, a second pump cylinder mounted upon the head and communicating with the passage, a piston Working in said cylinder and having a rod extending through the top of the casing, and a hand piece upon the rod.

In testimony whereof We affix our signatures.

CALVIN C. WILLIAMS. [L s] JUDSON WILLIAMS. L'L. s] 

